INTEGRATED CIRCUITS
74LVT240
ABT octal inverting buffer (3-State)
Product specification
Supersedes data of 1994 May 16
IC23 Data Handbook
1998 Feb 19
Philips Semiconductors Product specification
74L VT2403.3V Octal inverting buffer (3-State)
FEA TURES
•Octal bus interface
•3-State buffers
•Output capability: +64mA/-32mA
•TTL input and output switching levels
•Input and output interface capability to systems at 5V supply
•Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
•Power-up 3-State
•Live insertion/extraction permitted
•No bus current loading when output is tied to 5V bus
•Latch-up protection exceeds 500mA per JEDEC Std 17
•ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model.
QUICK REFERENCE DATA
SYMBOL PARAMETER
C
t
PLH
t
PHL
C
OUT
I
CCZ
IN
Propagation delay
nAx to nYx
Input capacitance VI = 0V or 3.0V 4 pF
Output capacitance Outputs disabled; VO = 0V or 3.0V 8 pF
Total supply current Outputs disabled; VCC = 3.6V 0.12 mA
CL = 50pF;
VCC = 3.3V
DESCRIPTION
The LVT240 is a high-performance BiCMOS product designed for
V
operation at 3.3V .
CC
This device is an octal inverting buffer that is ideal for driving bus
lines. The device features two Output Enables (1OE
controlling four of the 3-State outputs.
CONDITIONS
T
= 25°C; GND = 0V
amb
TYPICAL UNIT
2.5
2.6
, 2OE), each
ns
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER
20-Pin Plastic SOL –40°C to +85°C 74LVT240 D 74LVT240 D SOT163-1
20-Pin Plastic SSOP Type II –40°C to +85°C 74LVT240 DB 74LVT240 DB SOT339-1
20-Pin Plastic TSSOP Type I –40°C to +85°C 74LVT240 PW 74LVT240PW DH SOT360-1
PIN CONFIGURATION
1
1OE
1A0
2
2Y
3
3
4
1A1
5
2Y2
6
1A2
7
2Y
1
8
1A3
9
2Y
01Y3
10 11
GND
20
V
CC
19
2OE
18
1Y0
17
2A3
16
1
1Y
15
2A2
14
2
1Y
13
2A1
12
2A0
PIN DESCRIPTION
PIN NUMBER SYMBOL NAME AND FUNCTION
2, 4, 6, 8 1A0 – 1A3 Data inputs
11, 13, 15, 17 2A0 – 2A3 Data inputs
18, 16, 14, 12 1Y0 – 1Y3 Data outputs
9, 7, 5, 3 2Y0 – 2Y3 Data outputs
1, 19 1OE, 2OE Output enables
10 GND Ground (0V)
20 V
CC
Positive supply voltage
SV00006
1998 Feb 19 853-1744 18991
2
Philips Semiconductors Product specification
74LVT2403.3V Octal inverting buffer (3-State)
LOGIC SYMBOL
1A0
2
1A1
4
1A2
6
1A3
8
1OE
1
2A0
11
2A1
13
2A2
15
2A3
17
2OE
19
FUNCTION TABLE
INPUTS OUTPUTS
nOE nAx nYx
L L H
L H L
H X Z
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High impedance “Off” state
1Y
1Y
1Y
1Y
2Y0
2Y
2Y
2Y
LOGIC SYMBOL (IEEE/IEC)
0
18
1
16
2
14
3
12
9
1
7
2
5
3
3
SV00007
1
EN
2
4
6
8
19
EN
11
13
15
17
18
16
14
12
9
7
5
3
SV00008
ABSOLUTE MAXIMUM RA TINGS
SYMBOL
V
CC
V
I
V
OUT
DC supply voltage –0.5 to +4.6 V
DC input voltage
DC output voltage
PARAMETER CONDITIONS RATING UNIT
3
3
1, 2
–0.5 to +7.0 V
Output in Off or High state –0.5 to +7.0 V
Output in Low state 128
OUT
I
IK
I
OK
T
stg
p
Output in High state –64
DC input diode current VI < 0 –50 mA
DC output diode current VO < 0 –50 mA
Storage temperature range –65 to 150 °C
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability .
2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.
3. The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
1998 Feb 19
3